JPH109137A - Hermetic terminal - Google Patents

Hermetic terminal

Info

Publication number
JPH109137A
JPH109137A JP16411696A JP16411696A JPH109137A JP H109137 A JPH109137 A JP H109137A JP 16411696 A JP16411696 A JP 16411696A JP 16411696 A JP16411696 A JP 16411696A JP H109137 A JPH109137 A JP H109137A
Authority
JP
Japan
Prior art keywords
rubber cylinder
base plate
rubber tube
peripheral surface
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16411696A
Other languages
Japanese (ja)
Inventor
Noriyuki Yamazaki
典幸 山▲崎▼
Shigekazu Nozawa
重和 野澤
Masayuki Urashin
昌幸 浦新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16411696A priority Critical patent/JPH109137A/en
Publication of JPH109137A publication Critical patent/JPH109137A/en
Pending legal-status Critical Current

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  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

PROBLEM TO BE SOLVED: To ensure a sufficient airtightness of a hermetic terminal even upon dispersion in molding of its rubber tube and upon a drop in clamping force of the tube by the secular change, by forming one or plural ring-like irregular parts on the inner periphery, the outer periphery or both peripheries of a hollow, cylindrical rubber tube encircling a power-source terminal bolt. SOLUTION: A cylindrical rubber tube 23 is formed at its inner-peripheral center and outer-peripheral center with ring-like projections respectively. When pressed at its both end 29 and 30, the rubber tube 23 is brought into contact with a power-source terminal bolt 22 and the insertion face of a base plate 21 firstly at its projections 28 formed on the inner and the outer peripheries respectively. The close contact of the projections thus ensured causes no impairment of the airtightness of the terminal, even upon uneven pressurization of the rubber tube at its both ends, dispersion in shape of the tube including ellipticity and inclination, and a drop in clamping force of the tube by the secular change. The rubber tube 23 is made of rubber of insulating material and thus also exhibits an insulating effect between the power-source terminal bolt 22 and the base plate 21.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はモータ内蔵型圧縮機
用ハーメテイック端子に関する。
The present invention relates to a hermetic terminal for a compressor with a built-in motor.

【0002】[0002]

【従来の技術】従来の装置は、実公昭61−21587 号公報
に記載のように、圧縮機本体に内蔵されたモータは、圧
縮機の内と外を遮蔽するハーメテイック端子を介しモー
タ駆動用電源を取り込んでおり、ハーメテイック端子
は、電源用端子ボルトと電源用端子ボルトを挿入しかつ
固定するベース板、および電源用端子ボルトとベース板
との間を気密および絶縁する部材により構成されてい
る。電源用端子ボルトとベース板との間の気密および絶
縁は、ボルトを包むように挿入される中空円筒状のゴム
筒が両端より締め付けられ、内周面及び外周面が、それ
ぞれボルトおよびベース板に密着することにより行われ
る。また、このゴム筒は、電源用端子ボルトとベース板
との間を絶縁するに充分な材料特性をもっている。
2. Description of the Related Art As disclosed in Japanese Utility Model Publication No. 61-21587, a motor built in a compressor body has a motor driving power supply through a hermetic terminal that shields the inside and outside of the compressor. The hermetic terminal is composed of a power supply terminal bolt, a base plate into which the power supply terminal bolt is inserted and fixed, and a member for hermetically sealing and insulating between the power supply terminal bolt and the base plate. The airtightness and insulation between the power supply terminal bolt and the base plate are as follows: A hollow cylindrical rubber cylinder inserted around the bolt is tightened from both ends, and the inner and outer peripheral surfaces are in close contact with the bolt and base plate, respectively. It is done by doing. Further, this rubber cylinder has material properties sufficient to insulate between the power supply terminal bolt and the base plate.

【0003】[0003]

【発明が解決しようとする課題】高圧低圧のガス領域を
仕切るハーメテイック端子の気密および絶縁は、前述の
とおり、電源用端子ボルトを包むように挿入される中空
円筒状のゴム筒により行っている。ゴム筒は、その両端
を端子ボルトに取り付くナットによって間座を介し締め
付けられ、両端から圧せられたゴム筒が内側および外側
に広がり、内周面が端子ボルトに、また外周面がベース
板の挿入面に密着することにより、気密を確保してい
る。
As described above, the hermetic terminals for separating the high-pressure and low-pressure gas regions are hermetically sealed and insulated by the hollow cylindrical rubber cylinder inserted so as to enclose the power supply terminal bolts. The rubber cylinder is tightened via spacers with nuts attached to both ends of the terminal bolt, the rubber cylinder pressed from both ends expands inward and outward, the inner peripheral surface of the terminal bolt, and the outer peripheral surface of the base plate. Airtightness is ensured by close contact with the insertion surface.

【0004】従来技術は、中空円筒状のゴム筒が両端か
ら圧せられ、径方向の内側および外側へ拡大することを
利用しており、通常はゴム筒内外周面の中央部から拡大
する。しかし、両端からの加圧が不均等であったり、ゴ
ム筒が楕円である、あるいは傾いている等の形のばらつ
きに対しては、気密性は極端に低下する。
The prior art utilizes the fact that a hollow cylindrical rubber cylinder is pressed from both ends and expands radially inward and outward, and usually expands from the center of the inner and outer peripheral surfaces of the rubber cylinder. However, when the pressure from both ends is uneven, or when the rubber cylinder has an elliptical shape or a variation in shape such as being inclined, the airtightness is extremely reduced.

【0005】さらにこの部分は、圧力・温度による変
化、また雰囲気が冷媒と油にさらされているため、年次
経過と共に、ゴム筒が軟化劣化し締め付け力が不足、あ
るいは不均等となる。この場合にも同様に、気密性は極
端に低下し、油のにじみ等の問題が起こる。
Further, since this portion is changed by pressure and temperature, and the atmosphere is exposed to the refrigerant and the oil, the rubber cylinder is softened and deteriorated with the passage of the year, and the tightening force becomes insufficient or uneven. In this case as well, the airtightness is extremely reduced, and problems such as oil bleeding occur.

【0006】本発明は、組付け作業およびゴム筒の成形
性についてのばらつき、またゴム筒の経年変化による締
め付け力低下に対しても、充分な気密性を確保すること
を目的とする。
SUMMARY OF THE INVENTION It is an object of the present invention to ensure a sufficient airtightness against variations in the assembling work and the moldability of a rubber cylinder, and a reduction in a tightening force due to aging of the rubber cylinder.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、中空円筒状のゴム筒の内周面、又は外周
面、又は内周面と外周面の両方に、1ヶ又は数個(複
数)のリング状の凹凸を形成した。ゴム筒の内周面、又
は外周面にある凸部は、ゴム筒の両端を圧すると、他の
部分より先に電源用端子ボルトおよびベース板の挿入面
に密着する。このため、両端からの加圧が不均等であっ
たり、ゴム筒が楕円である、あるいは傾いている等の形
のばらつきに対しても、またゴム筒の経年変化による締
め付け力低下に対しても、凸部の密着が確保されている
ため気密性を損なうことはない。
In order to achieve the above-mentioned object, the present invention relates to a method in which one or more inner or outer peripheral surfaces of a hollow cylindrical rubber cylinder or both of the inner and outer peripheral surfaces are provided. Several (plural) ring-shaped irregularities were formed. When a convex portion on the inner peripheral surface or the outer peripheral surface of the rubber cylinder presses both ends of the rubber cylinder, it comes into close contact with the power supply terminal bolt and the insertion surface of the base plate before other portions. For this reason, even if the pressing force from both ends is uneven, the rubber cylinder is elliptical, or the shape is inclined, or the like, and the tightening force is reduced due to aging of the rubber cylinder. The airtightness is not impaired because the projections are kept in close contact.

【0008】[0008]

【発明の実施の形態】以下、本発明の一実施例を図1に
より説明する。図1はスクリュー圧縮機に使用する、モ
ータ駆動電源取り込み用のハーメテイック端子の部分断
面図である。また、スクリュー圧縮機の断面図を図2に
示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a partial sectional view of a hermetic terminal for taking in a motor drive power supply used in a screw compressor. FIG. 2 is a sectional view of the screw compressor.

【0009】圧縮機構造は、図2に示すとおり、雄雌一
対のスクリューロータ(雄ロータ8,雌ロータ7図示せ
ず)、スクリューロータの支持部材,容量制御用のスラ
イド弁3、その他部材を納めたケーシング1、およびD
カバー4からなる圧縮機構部35、また同じくケーシン
グ1に収納されるスクリューロータの駆動用モータ9,
モータ9の電源取り込み用のハーメテイック端子10か
らなる駆動用モータ部34,ケーシング1を吸入側およ
び吐出側から密封するモータカバー2,Dチャンバ5か
らなる。Dチャンバ5はガスに含まれる軸受潤滑用の油
を分離する効果を有する。
As shown in FIG. 2, the compressor structure includes a pair of male and female screw rotors (male rotor 8 and female rotor 7 not shown), a support member for the screw rotor, a slide valve 3 for capacity control, and other members. Casing 1 and D
A compression mechanism 35 comprising a cover 4; a driving motor 9 for a screw rotor also housed in the casing 1;
It comprises a drive motor section 34 comprising a hermetic terminal 10 for taking in the power of the motor 9, a motor cover 2 for sealing the casing 1 from the suction side and the discharge side, and a D chamber 5. The D chamber 5 has an effect of separating bearing lubrication oil contained in the gas.

【0010】モータカバー2の吸入口11から吸入され
た低温低圧な冷媒ガスは、駆動用モータ9を通過し、雄
雌のスクリューロータ(雄ロータ8)の噛み合い部とケ
ーシング1により囲まれる吸入ポート12から吸入され
る。その後、冷媒ガスは駆動用モータ9に締結する雄ロ
ータ8の回転と共に、雄雌のスクリューロータ噛み合い
歯面とケーシング1により閉じられ、徐々に噛み合いの
歯形空間の縮小により圧縮され高圧高温ガスとなってD
カバー4から吐出される。圧縮時、圧縮反力が雄雌のス
クリューロータに作用するが、ラジアル荷重をコロ軸受
13,14,15により支持し、スラスト荷重をタマ軸受
16により支持している(雌ロータ側軸受は図示せ
ず)。これ等の軸受の潤滑、冷却用の油は高圧部にある
ケーシング1の下部油溜め17から各軸受部に通じる油
路を通り差圧給油され、圧縮ガスと共に吐出される。圧
縮ガスに含まれる油分はDチャンバ5に取り付けたデミ
スタ6により分離されケーシング1下部の油溜め17に
溜められる。油を分離後圧縮ガスは吐出口18より吐出
される。
The low-temperature and low-pressure refrigerant gas sucked from the suction port 11 of the motor cover 2 passes through the driving motor 9, and is formed by a meshing portion of the male and female screw rotors (male rotor 8) and the suction port surrounded by the casing 1. Inhaled from 12. Thereafter, the refrigerant gas is closed by the male and female screw rotor meshing tooth surfaces and the casing 1 together with the rotation of the male rotor 8 fastened to the drive motor 9, and is gradually compressed by the reduction of the meshing tooth space to become a high-pressure high-temperature gas. D
It is discharged from the cover 4. At the time of compression, a compression reaction force acts on the male and female screw rotors, but the radial load is supported by roller bearings 13, 14, 15 and the thrust load is supported by the ball bearing 16 (the female rotor-side bearing is not shown). Zu). Oil for lubricating and cooling these bearings is supplied from the lower oil reservoir 17 of the casing 1 at a high pressure portion through oil passages leading to the bearing portions, and is supplied with differential pressure oil and discharged together with the compressed gas. The oil contained in the compressed gas is separated by the demister 6 attached to the D chamber 5 and stored in the oil reservoir 17 at the lower part of the casing 1. After separating the oil, the compressed gas is discharged from the discharge port 18.

【0011】容量制御機構については、例えば、特開昭
56−143388号および特開昭57−206794号公報に開示され
ている。
Regarding the capacity control mechanism, for example,
No. 56-143388 and JP-A-57-206794.

【0012】尚、駆動用モータ部34内モータ室19は
吸入圧力であり、Dチャンバ5内は吐出圧力である。
The motor chamber 19 in the drive motor section 34 is at a suction pressure, and the inside of the D chamber 5 is at a discharge pressure.

【0013】図1は、図2に示すスクリュー圧縮機のモ
ータ9の電源取り込み用のハーメテイック端子10の断
面図である。ハーメテイック端子10は、モータ室19
(吸入圧力)と圧縮機外部20をベース板21で遮蔽
し、ベース板21に設けた取付穴に、電源用端子ボルト
22が挿入され、電源用端子ボルト22とベース板21
との間には、電源用端子ボルト22を包むゴム筒23が
挿入され、ゴム筒23を両端から間座24,間座25を
介し、ナット26,ナット27により締め付け押さえつ
けている。両端より、間座24,25により圧せられた
ゴム筒23は、ぶされ内周面は内側に、また外周面は外
側に広がり、それぞれ電源用端子ボルト外周部と、ベー
ス板の取付穴内周部に密着する。これにより、モータ室
19(吸入圧力)から圧縮機外部20へのガス洩れを防
止し、また電源用端子ボルト22とベース板21との絶
縁を確保している。
FIG. 1 is a sectional view of a hermetic terminal 10 for taking in power of a motor 9 of the screw compressor shown in FIG. The hermetic terminal 10 is connected to the motor chamber 19.
(Suction pressure) and the outside 20 of the compressor are shielded by a base plate 21, and a power supply terminal bolt 22 is inserted into a mounting hole provided in the base plate 21.
A rubber cylinder 23 that wraps the power supply terminal bolt 22 is inserted between them, and the rubber cylinder 23 is tightened and held down from both ends by nuts 26 and nuts 27 via spacers 24 and spacers 25. The rubber cylinder 23 pressed by the spacers 24 and 25 from both ends is crushed and the inner peripheral surface is expanded inward, and the outer peripheral surface is expanded outward. Adhere to the part. Thus, gas leakage from the motor chamber 19 (suction pressure) to the outside 20 of the compressor is prevented, and insulation between the power supply terminal bolt 22 and the base plate 21 is ensured.

【0014】従来技術によるゴム筒23の外周面は、図
7に示す中空円筒状のゴム筒であった。図7のゴム筒の
場合、両端からの加圧が均等であったり、ゴム筒が楕円
である、あるいは傾いている等の形のばらつき、またゴ
ム筒の経年変化による締め付け力低下に対しては、内外
径面の拡大は不均一となり、気密性は極端に低下する。
The outer peripheral surface of the conventional rubber cylinder 23 is a hollow cylindrical rubber cylinder shown in FIG. In the case of the rubber cylinder shown in FIG. 7, variations in the shape of the rubber cylinder, such as uniform pressurization from both ends, an elliptical or inclined rubber cylinder, and a decrease in the tightening force due to the aging of the rubber cylinder are described. In addition, the expansion of the inner and outer diameter surfaces becomes non-uniform, and the airtightness is extremely reduced.

【0015】本発明では、図1に示すように、円筒状の
ゴム筒23の内周面中央と外周面中央にリング状の凸を
形成した。図3(a)は、図1のゴム筒23の単品図で
ある。ゴム筒23の内周面、又は外周面にある凸部28
は、ゴム筒23の両端29,30を圧すると、他の部分
より先に電源用端子ボルト22およびベース板21の挿
入面に密着する。このため、両端からの加圧が不均等で
あったり、ゴム筒が楕円である、あるいは傾いている等
の形のばらつき、またゴム筒の経年変化による締め付け
力低下に対しても、凸部の密着が確保されているため気
密性を損なうことはない。
In the present invention, as shown in FIG. 1, a ring-shaped protrusion is formed at the center of the inner peripheral surface and the center of the outer peripheral surface of the cylindrical rubber cylinder 23. FIG. 3A is a single item diagram of the rubber cylinder 23 of FIG. The convex portion 28 on the inner peripheral surface or the outer peripheral surface of the rubber cylinder 23
When the both ends 29 and 30 of the rubber tube 23 are pressed, the rubber tube 23 comes into close contact with the insertion surfaces of the power supply terminal bolt 22 and the base plate 21 before the other portions. For this reason, unevenness in pressurization from both ends, unevenness of the rubber cylinder in an elliptical shape or inclination, etc., and a decrease in the tightening force due to aging of the rubber cylinder also prevent the protrusion from being deformed. Airtightness is not impaired because adhesion is ensured.

【0016】また、ゴム筒23は、絶縁材料であるゴム
を使用するため、気密効果を持つと共に、電源用端子ボ
ルト22とベース板21との間を絶縁効果も有するもの
である。
Further, since the rubber cylinder 23 uses rubber as an insulating material, it has an airtight effect and also has an insulating effect between the power supply terminal bolt 22 and the base plate 21.

【0017】他の実施例を、図3(b),図3(c),
図3(d)に示す。図3(b)は、円筒状のゴム筒23
の内周面中央と外周面中央に複数のリング状の凸を形成
した。(図は各面に3ヶ)図3(c)は円筒状のゴム筒
23の内周面,外周面を太鼓の胴部のように太らせたも
のである。また、図3(d)は円筒状のゴム筒23の内
周面,外周面を複数のリング状の波形としたものであ
る。図3(b),図3(c),図3(d)に示す、ゴム筒に
よっても、ゴム筒両端を圧すると、凸部が他の部分より
先に電源用端子ボルトおよびベース板の挿入面に密着さ
れ、気密が確保される。
Another embodiment will be described with reference to FIGS.
It is shown in FIG. FIG. 3B shows a cylindrical rubber cylinder 23.
A plurality of ring-shaped protrusions were formed at the center of the inner peripheral surface and the center of the outer peripheral surface of the. FIG. 3 (c) shows the inner and outer peripheral surfaces of the cylindrical rubber cylinder 23 made thicker like a drum trunk. FIG. 3D shows a plurality of ring-shaped waveforms on the inner and outer peripheral surfaces of the cylindrical rubber cylinder 23. 3B, 3C, and 3D, when the both ends of the rubber cylinder are pressed by the rubber cylinder, the convex portions are inserted into the power supply terminal bolts and the base plate before the other portions. Adhered to the surface, airtightness is ensured.

【0018】他の実施例を図4に示す。ゴム筒23の内
周面,外周面は、モータ室側19から圧縮機外部20へ
向いリング状にくさび型のひだ31となっている。ま
ず、ゴム筒両端を圧すると、凸部が他の部分より先に電
源用端子ボルトおよびベース板の挿入面に密着される。
さらに、圧縮機内部と外部の圧力差に対しては、ゴム筒
23の内周面,外周面に設けたくさび型のひだ31が、
外周面側は外側に、また内周面側は内側に広がり、電源
用端子ボルト22およびベース板21の挿入面により密
着され、より気密が確保される。
Another embodiment is shown in FIG. The inner peripheral surface and the outer peripheral surface of the rubber cylinder 23 are wedge-shaped folds 31 each formed in a ring shape from the motor chamber side 19 to the outside 20 of the compressor. First, when both ends of the rubber cylinder are pressed, the convex portion comes into close contact with the power supply terminal bolt and the insertion surface of the base plate before the other portions.
Further, against a pressure difference between the inside and the outside of the compressor, wedge-shaped folds 31 provided on the inner and outer peripheral surfaces of the rubber cylinder 23 are provided.
The outer peripheral surface side extends outward, and the inner peripheral surface side extends inward, and is closely attached to the insertion surfaces of the power supply terminal bolts 22 and the base plate 21 to further secure airtightness.

【0019】他の実施例を、図5に示す。本実施例は、
ゴム筒23に代わり、Oリング32を複数個重ね電源用
端子ボルト22およびベース板21の挿入面の間に挿入
するものである。重ねられたOリング32の両端を圧す
ると、Oリングの最外周部及び最内周部が他の部分より
先に電源用端子ボルトおよびベース板の挿入面に密着さ
れ、気密が確保される。
Another embodiment is shown in FIG. In this embodiment,
Instead of the rubber cylinder 23, a plurality of O-rings 32 are stacked and inserted between the power supply terminal bolts 22 and the insertion surface of the base plate 21. When both ends of the superposed O-ring 32 are pressed, the outermost and innermost peripheral portions of the O-ring are brought into close contact with the power supply terminal bolts and the insertion surface of the base plate before the other portions, thereby ensuring airtightness.

【0020】また、図6は図3(b)のゴム筒を使用し
た場合を示すものであるが、外周面,内周面にできる凹
み部分にゲル状のシール剤や、シールリング等33を充
填すれば、さらに気密性が確保される。同様に図3
(b),図3(d),図4についても、ゴム筒または重
ねられたOリングの外周面,内周面に凹みができる形状
の場合には、この凹み部分にゲル状のシール剤や、シー
ルリング等を充填すれば、さらに気密性が確保される。
FIG. 6 shows a case in which the rubber cylinder shown in FIG. 3B is used, and a gel-like sealing agent or a seal ring 33 is provided in the concave portions formed on the outer peripheral surface and the inner peripheral surface. If filled, airtightness is further ensured. Similarly in FIG.
(B), FIG. 3 (d), and FIG. 4 also show that when the rubber cylinder or the overlapped O-ring has a shape in which the outer peripheral surface and the inner peripheral surface can be dented, a gel-like sealing agent or If a seal ring or the like is filled, airtightness is further secured.

【0021】以上の実施例は、スクリュー圧縮機につい
て説明したが、駆動用モータを内蔵する圧縮機について
も、本発明は適用可能である。
In the above embodiments, the screw compressor has been described. However, the present invention is also applicable to a compressor having a built-in drive motor.

【0022】[0022]

【発明の効果】本発明によれば、ハーメチック端子の電
源用端子ボルト部の気密に関し、気密部材であるゴム筒
の両端からの締め付けが不均等であったり、ゴム筒が楕
円である、あるいは傾いている等の形のばらつきに対し
て、ゴム筒の内周面,外周面に設けた凸部が、まず先に
電源用端子ボルトおよびベース板の挿入面に密着するた
め、気密性を損なうことはない。またゴム筒の経年変化
による締め付け力低下に対しても、ゴム筒の内周面,外
周面に設けた凸部が、電源用端子ボルトおよびベース板
の挿入面に密着しているため、増し締め等のメンテナン
スを軽減すると共に、高い気密性の確保,維持を行うこ
とができる。
According to the present invention, regarding the hermetic sealing of the power supply terminal bolts of the hermetic terminals, the tightening from both ends of the rubber cylinder, which is a hermetic member, is uneven, or the rubber cylinder is elliptical or inclined. The convexity provided on the inner and outer peripheral surfaces of the rubber cylinder first comes into close contact with the power supply terminal bolts and the insertion surface of the base plate, thus impairing airtightness. There is no. In addition, even if the tightening force decreases due to the aging of the rubber cylinder, the protrusions provided on the inner and outer peripheral surfaces of the rubber cylinder are in close contact with the insertion surfaces of the power supply terminal bolt and the base plate. Maintenance can be reduced, and high airtightness can be secured and maintained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】モータ駆動電源取り込み用のハーメテイック端
子の部分断面図。
FIG. 1 is a partial cross-sectional view of a hermetic terminal for taking in motor drive power.

【図2】スクリュー圧縮機の断面図。FIG. 2 is a sectional view of a screw compressor.

【図3】図1のゴム筒の断面図。FIG. 3 is a sectional view of the rubber cylinder of FIG. 1;

【図4】他の実施例のゴム筒23の単品図。FIG. 4 is a single-piece drawing of a rubber cylinder 23 of another embodiment.

【図5】複数個重ねられたOリングの断面図。FIG. 5 is a sectional view of a plurality of stacked O-rings.

【図6】他の実施例のハーメテイック端子の部分断面
図。
FIG. 6 is a partial sectional view of a hermetic terminal according to another embodiment.

【図7】従来の技術を説明するハーメテイック端子の部
分断面図。
FIG. 7 is a partial cross-sectional view of a hermetic terminal illustrating a conventional technique.

【符号の説明】[Explanation of symbols]

19…モータ室、20…圧縮機外部、21…ベース板、
22…電源用端子ボルト、23…ゴム筒、24,25…
間座、26,27…ナット、28…ゴム筒外周面凸部。
19: motor room, 20: outside the compressor, 21: base plate,
22: power supply terminal bolt, 23: rubber cylinder, 24, 25 ...
Spacers, 26, 27 ... nuts, 28 ... convex portions on the outer peripheral surface of the rubber cylinder.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】モータ内蔵型圧縮機用のハーメテイック端
子において、電源用端子ボルトと前記電源用端子ボルト
を挿入しかつ固定するベース板間の気密および絶縁を、
ボルトを包むように挿入される中空円筒状のゴム筒によ
り実施する構造のハーメテイック端子であって、ガス漏
れ防止用の前記中空円筒状のゴム筒の内周面、又は外周
面、又は内周面と外周面の両方に、1ヶ又は数個のリン
グ状の凹凸を形成したことを特徴とするハーメテイック
端子。
1. A hermetic terminal for a compressor with a built-in motor, wherein airtightness and insulation between a power supply terminal bolt and a base plate into which the power supply terminal bolt is inserted and fixed are determined.
A hermetic terminal having a structure implemented by a hollow cylindrical rubber cylinder inserted so as to enclose a bolt, and an inner peripheral surface, an outer peripheral surface, or an inner peripheral surface of the hollow cylindrical rubber cylinder for preventing gas leakage. A hermetic terminal characterized in that one or several ring-shaped irregularities are formed on both outer peripheral surfaces.
JP16411696A 1996-06-25 1996-06-25 Hermetic terminal Pending JPH109137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16411696A JPH109137A (en) 1996-06-25 1996-06-25 Hermetic terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16411696A JPH109137A (en) 1996-06-25 1996-06-25 Hermetic terminal

Publications (1)

Publication Number Publication Date
JPH109137A true JPH109137A (en) 1998-01-13

Family

ID=15787062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16411696A Pending JPH109137A (en) 1996-06-25 1996-06-25 Hermetic terminal

Country Status (1)

Country Link
JP (1) JPH109137A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001834A1 (en) * 2008-07-02 2010-01-07 サンデン株式会社 Electric compressor
JP2016086457A (en) * 2014-10-23 2016-05-19 アイシン精機株式会社 motor
WO2018048086A1 (en) * 2016-09-08 2018-03-15 한온시스템 주식회사 Compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010001834A1 (en) * 2008-07-02 2010-01-07 サンデン株式会社 Electric compressor
JP2016086457A (en) * 2014-10-23 2016-05-19 アイシン精機株式会社 motor
WO2018048086A1 (en) * 2016-09-08 2018-03-15 한온시스템 주식회사 Compressor
US11128193B2 (en) 2016-09-08 2021-09-21 Hanon Systems Compressor

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